How to cook beer can chicken on a Weber kettle barbecue
http://www.simple-bbq.com cooks a beer can or beer butt chicken. Using a Barbecue Stacker from http://www.BarbecueStacker.com to create the extra space required in the kettle BBQ for the chicken to stand up in. A chicken stock cube (I prefer a reduced salt stock cube) is a perfect base for any seasoning you like to add. Water in the cans seems to work just as well as any thing else.
Here is a link the Barbecue Stacker website; http://goo.gl/RzzuBw